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        <h2>
          <span class="refentrytitle">clockoff</span>
        </h2>
        <p>clockoff — 
      Stops one of a number of internal clocks.
          </p>
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      <div class="refsect1">
        <a id="idp94773696"></a>
        <h2>Description</h2>
        <p>
      Stops one of a number of internal clocks.
    </p>
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      <div class="refsect1">
        <a id="idp94774912"></a>
        <h2>Syntax</h2>
        <pre class="synopsis"><span class="command"><strong>clockoff</strong></span> inum</pre>
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      <div class="refsect1">
        <a id="idp94776928"></a>
        <h2>Initialization</h2>
        <p>
      <span class="emphasis"><em>inum</em></span> -- the number of a clock.  There are 32 clocks numbered 0 through 31. All other values are mapped to clock number 32.
    </p>
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      <div class="refsect1">
        <a id="idp94778672"></a>
        <h2>Performance</h2>
        <p>
      Between a <a class="link" href="clockon.html" title="clockon"><em class="citetitle">clockon</em></a> and a <span class="emphasis"><em>clockoff</em></span> opcode, the CPU time used is accumulated in the clock.  The precision is machine dependent but is the millisecond range on UNIX and Windows systems. The <a class="link" href="readclock.html" title="readclock"><em class="citetitle">readclock</em></a> opcode reads the current value of a clock at initialization time.
    </p>
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      <div class="refsect1">
        <a id="idp94782448"></a>
        <h2>Examples</h2>
        <p>
      Here is an example of the clockoff opcode. It uses the file <a class="ulink" href="examples/clockoff.csd" target="_top"><em class="citetitle">clockoff.csd</em></a>.

      </p>
        <div class="example">
          <a id="idp94784304"></a>
          <p class="title">
            <strong>Example 123. Example of the clockoff opcode.</strong>
          </p>
          <div class="example-contents">
            <pre class="programlisting">
<span class="csdtag">&lt;CsoundSynthesizer&gt;</span>
<span class="csdtag">&lt;CsOptions&gt;</span>
<span class="comment">; Select audio/midi flags here according to platform</span>
<span class="comment">; Audio out   Audio in</span>
-odac           -iadc    <span class="comment">;;;RT audio I/O</span>
<span class="comment">; For Non-realtime ouput leave only the line below:</span>
<span class="comment">; -o clockoff.wav -W ;;; for file output any platform</span>
<span class="csdtag">&lt;/CsOptions&gt;</span>
<span class="csdtag">&lt;CsInstruments&gt;</span>

<span class="comment">; Initialize the global variables.</span>
<span class="ohdr">sr</span> <span class="op">=</span> 44100
<span class="ohdr">kr</span> <span class="op">=</span> 44100
<span class="ohdr">ksmps</span> <span class="op">=</span> 1
<span class="ohdr">nchnls</span> <span class="op">=</span> 1

<span class="comment">; Instrument #1.</span>
<span class="oblock">instr</span> 1
  <span class="comment">; Start clock #1.</span>
  <span class="opc">clockon</span> 1
  <span class="comment">; Do something that keeps Csound busy.</span>
  a1 <span class="opc">oscili</span> 10000, 440, 1
  <span class="opc">out</span> a1
  <span class="comment">; Stop clock #1.</span>
  <span class="opc">clockoff</span> 1
  <span class="comment">; Print the time accumulated in clock #1.</span>
  i1 <span class="opc">readclock</span> 1
  <span class="opc">print</span> i1
<span class="oblock">endin</span>


<span class="csdtag">&lt;/CsInstruments&gt;</span>
<span class="csdtag">&lt;CsScore&gt;</span>

<span class="comment">; Initialize the function tables.</span>
<span class="comment">; Table 1: an ordinary sine wave.</span>
<span class="stamnt">f</span> 1 0 32768 10 1

<span class="comment">; Play Instrument #1 for one second starting at 0:00.</span>
<span class="stamnt">i</span> 1 0 1
<span class="comment">; Play Instrument #1 for one second starting at 0:01.</span>
<span class="stamnt">i</span> 1 1 1
<span class="comment">; Play Instrument #1 for one second starting at 0:02.</span>
<span class="stamnt">i</span> 1 2 1
<span class="stamnt">e</span>


<span class="csdtag">&lt;/CsScore&gt;</span>
<span class="csdtag">&lt;/CsoundSynthesizer&gt;</span>
</pre>
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        <p><br class="example-break" />
    </p>
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      <div class="refsect1">
        <a id="idp94786224"></a>
        <h2>See Also</h2>
        <p>
      <a class="link" href="clockon.html" title="clockon"><em class="citetitle">clockon</em></a>, <a class="link" href="readclock.html" title="readclock"><em class="citetitle">readclock</em></a>
    </p>
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      <div class="refsect1">
        <a id="idp94789200"></a>
        <h2>Credits</h2>
        <p>
      </p>
        <table border="0" summary="Simple list" class="simplelist">
          <tr>
            <td>Author: John ffitch</td>
          </tr>
          <tr>
            <td>University of Bath/Codemist Ltd.</td>
          </tr>
          <tr>
            <td>Bath, UK</td>
          </tr>
          <tr>
            <td>July, 1999</td>
          </tr>
        </table>
        <p>
    </p>
        <p>New in Csound version 3.56</p>
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